Home / Explore / Minerals / Katoptrite Minerals Katoptrite katoptrite (Mn²⁺,Mg)13(Al,Fe³⁺)4Sb5+2(SiO4)2O20 Katoptrite: Mineral information, data and localities. — via www.mindat.org · Source Overview Katoptrite is a mineral species (nesosilicate mineral). Nickel–Strunz class: 9.AE.40. Scientific references Katoptrite — Wikidata. https://www.wikidata.org/wiki/Q3813981 Link